树型表格全量加载数据如何处理

阅读该文档的前置条件

1.前端自定义表格组件

import { ActiveRecord, BaseElementWidget, Condition, Entity, SPI, TableWidget, ViewType } from '@kunlun/dependencies';

@SPI.ClassFactory(
  BaseElementWidget.Token({
    type: ViewType.Table,
    widget: ['demo-tree-table']
  })
)
export class TreeTableWidget extends TableWidget {

  // 默认展开所有层级
  protected getTreeExpandAll() {
    return true;
  }

  // 关闭懒加载
  protected getTreeLazy(): boolean {
    return false;
  }

  public async $$loadTreeNodes(condition?: Condition, currentRow?: ActiveRecord): Promise<Entity[]> {
    // 树表加载数据的方法,默认首次只查第一层的数据,这里去掉这个查询条件的参数condition,这样就会查所有层级数据
    return super.$$loadTreeNodes(undefined, currentRow);
  }
}

2. 注册layout

import { registerLayout, ViewType } from '@kunlun/dependencies';

const install = () => {
  registerLayout(
    `
      <view type="TABLE">
        <element widget="actionBar" slot="actionBar" slotSupport="action">
          <xslot name="actions" slotSupport="action" />
        </element>
        <element widget="demo-tree-table" slot="table">
          <element widget="expandColumn" slot="expandRow" />
          <xslot name="fields" slotSupport="field" />
          <element widget="rowActions" slot="rowActions" slotSupport="action" />
        </element>
      </view>
    `,
    {
      viewType: ViewType.Table,
      model: "resource.resourceCity", // 变量,需要替换
      actionName: "MenuuiMenu6f6005bdddba468bb2fb814a62fa83c6", // 变量,需要替换
    }
  );
};

install();

Oinone社区 作者:nation原创文章,如若转载,请注明出处:https://doc.oinone.top/frontend/16149.html

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